EN 3561:2001
(Main)Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end
This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications.
Nominal pressure: up to 28 000 kPa
Temperature range: - 55 °C to + 135 °C
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Stutzen mit Dichtlippe und Anschweißende reduziertes Rohrende
Série aérospatiale - Systéme de raccordement 8°30' en alliage de titane - Olives soudées de réduction avec lèvre d'étanchéite
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end
General Information
- Status
- Published
- Publication Date
- 23-Oct-2001
- Withdrawal Date
- 29-Apr-2002
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 31-May-2017
- Completion Date
- 11-Feb-2026
Relations
- Refers
EN 2656:2001 - Aerospace series - Pipe coupling - Coupling end, welded - Geometric configuration - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 22-Dec-2008
Overview
EN 3561:2001 is a European standard developed by CEN for the aerospace industry, specifying the characteristics of ferrules used in 8°30' pipe couplings made from titanium alloy. These ferrules feature a dynamic beam seal end, are welded and reduced at the pipe end, and are designed specifically for aerospace fluid systems. The standard addresses applications requiring high strength, corrosion resistance, and reliable performance under demanding operating conditions.
Key features include:
- Material: Titanium alloy ferrules
- Configuration: Dynamic beam seal end, welded and reduced at the pipe end
- Operating Pressure: Up to 28,000 kPa
- Temperature Range: -55 °C to +135 °C
Adherence to EN 3561:2001 ensures compatibility, performance, and interchangeability across aerospace fluid systems that use these critical pipe coupling components.
Key Topics
- Ferrule Characteristics: Detailed requirements for geometric configuration, surface roughness, and material selection to guarantee mechanical and sealing performance.
- Specific Applications: Designed for integration with 8°30' angle pipe couplings within titanium alloy-based hydraulic and fluid transfer lines.
- Pressure and Temperature Ratings: Ensures reliability across a wide range of pressures (up to 28,000 kPa) and temperatures (-55 °C to +135 °C), addressing extreme aerospace environments.
- Welding and Reduction: Specifies procedures and dimensional criteria for welding the ferrule to pipe ends, including diameter reduction to fit various installation requirements.
- Marking and Identification: Establishes marking protocols as per EN 2424, ensuring traceability and conformity with aerospace documentation standards.
Applications
EN 3561:2001 is specifically intended for:
- Aerospace Hydraulic and Fluid Systems: Used in critical sections of aircraft, spacecraft, and related aerospace vehicles requiring robust, high-integrity pipe coupling solutions.
- Titanium Alloy Pipelines: Particularly suitable for titanium alloy pipework where high strength-to-weight ratio, corrosion resistance, and durability are essential.
- High-Pressure Environments: Ideal for aerospace applications operating at pressures up to 28,000 kPa, ensuring safe transmission of fluids in demanding scenarios.
- Temperature-Resistant Installations: Reliable operation across broad temperature ranges, supporting both low- and high-temperature aerospace functions.
Implementing EN 3561:2001 ferrules promotes system efficiency, safety, and maintenance consistency throughout an aerospace program’s lifecycle.
Related Standards
EN 3561:2001 is part of a suite of aerospace standards for fluid system components. Relevant related standards include:
- EN 2424 - Marking of aerospace products, providing identification and traceability protocols.
- EN 2656 - Pipe coupling, welded ends, and geometric configuration.
- EN 3272 - Pipe couplings with dynamic beam seal ends for ferrules, welded, defining further geometric and performance requirements.
- EN 3275 - Pipe coupling up to 28,000 kPa, dynamic beam seal, metric series, and technical specification.
- EN 3311 / EN 3314 - Titanium alloy specifications for parts machining, ensuring material compatibility and performance.
Using these standards in conjunction helps ensure full compliance, interoperability, and safety across European and global aerospace fluid systems.
Keywords: EN 3561:2001, aerospace pipe coupling, titanium alloy ferrules, dynamic beam seal, high-pressure fluid systems, aerospace standards, CEN, aerospace hydraulic systems, fluid transfer, pipe coupling standards, aviation components.
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Frequently Asked Questions
EN 3561:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam seal end, welded and reduced at pipe end". This standard covers: This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C
This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and reduced at pipe end for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C
EN 3561:2001 is classified under the following ICS (International Classification for Standards) categories: 49.080 - Aerospace fluid systems and components. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3561:2001 has the following relationships with other standards: It is inter standard links to EN 2656:2001, EN 3275:2019, EN 3311:2023, EN 2424:2008, EN 3272:2001, EN 3561:2001/AC:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3561:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic
beam seal end, welded and reduced at pipe end
Aerospace series - Pipe coupling 8°30' in titanium alloy - Ferrules with dynamic beam
seal end, welded and reduced at pipe end
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Stutzen mit
Dichtlippe und Anschweißende reduziertes Rohrende
Série aérospatiale - Systéme de raccordement 8°30' en alliage de titane - Olives
soudées de réduction avec levre d'étanchéite
Ta slovenski standard je istoveten z: EN 3561:2001
ICS:
49.080 /HWDOVNLLQYHVROMVNL Aerospace fluid systems and
KLGUDYOLþQLVLVWHPLLQGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 3561
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 49.080
English version
Aerospace series - Pipe coupling 8°30' in titanium alloy -
Ferrules with dynamic beam seal end, welded and reduced at
pipe end
Série aérospatiale - Système de raccordement 8°30' en Luft- und Raumfahrt - Rohrverschraubung 8°30' aus
alliage de titane - Olives soudées de réduction avec lèvre Titanlegierung - Stutzen mit Dichtlippe und Anschweißende
d'étanchéite reduziertes
This European Standard was approved by CEN on 20 January 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3561:2001 E
worldwide for CEN national Members.
Foreword
This European Standard has been prepared by the European Association of Aerospace Manufacturers
(AECMA).
After inquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn at
the latest by April 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This standard specifies the characteristics for ferrules with a dynamic beam seal end, welded and red
...
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